Adding a week of coffee grounds from our local cafe to the compost heap. It's good to feel the heat of transformation. Change is possible. A spent force is the substrate for future abundance. - ThreadSky

About ThreadSky

frasermacdonald.bsky.social • 30 days ago

Adding a week of coffee grounds from our local cafe to the compost heap. It's good to feel the heat of transformation.

Change is possible.

A spent force is the substrate for future abundance.

Comments

threadinburgh.scot•30 days ago

Pure steamin'.
Is draff any good for compost?

frasermacdonald.bsky.social•30 days ago

draff would be amazing, I just don't have access to any.

the rule is: if it was ever alive, I can compost it.

dudnees.bsky.social•30 days ago

I avoid adding coffee grounds now, since reading the @newscientist.bsky.social article:

https://www.newscientist.com/article/mg25834430-900-why-used-coffee-grounds-may-be-doing-your-plants-more-harm-than-good/

frasermacdonald.bsky.social•30 days ago

I think this is about using coffee grounds as a mulch (which I wouldn't) rather than as a compost feedstock where caffeine is denatured by thermophilic microbes.

dudnees.bsky.social•30 days ago

Ah, I see. I think you're right about the article. Thanks.

It seems likely, but I'd like to see some science on whether caffeine is broken down during composting.

frasermacdonald.bsky.social•30 days ago

I haven't seen anything specifically on this, but there seems to be a general assumption that caffeine will be metabolised in compost like it is in humans. But I guess you could do a bioassay on seeds to check (e.g. like some growers do for aminopyralid residues).

Posting Rules

Be respectful to others
No spam or self-promotion
Stay on topic
Follow Bluesky's terms of service

Comments

Posting Rules

Reply